By taking these precautionary steps, you will be able to ensure your gardenia is exposed to temperatures within its acceptable range. For colder areas, however, these should be brought inside (see care below). Cold water draws body heat If a person is in a cold lake of 4 C, then a person can survive for a maximum of 30 minutes. Gardenia cold damage occurs even when there is no snow on the ground. Watering and Mulching. How can I protect my lungs from cold air? When finishing concrete in cold weather, you still, With clean, sharp pruners, cut off the entire spent bloom just above a leaf set so you are not leaving odd-looking bare stems. However, you need to protect the plants leaves from burning in the sun months, aka June, July, and August. If you do find green tissue, stop pruning and wait for new growth. Fertilize your gardenia every other month with a balanced fertilizer. Make sure you check for insects, pests, and scales that can attack the potted Gardenia from time to time. Oops, we have a few nights in the 30s, AND it rains a lot. Although, for people who do not know about Gardenia, they are still gloriously lush with little yellowing. Gardenias were named after the Scottish-born American naturalist Alexander Garden . Plesae let us know what went wrong? . The 'Gardenia jasminoides 'Veitchii' is another hardy variety that can withstand temperatures as low as 20 degrees Fahrenheit. Tropical plants may suffer harm even before this, so bring them inside a bit earlier, when temperatures drop below 50 degrees. We will update our content. This article was last updated on 02/14/21. A gardenia (Gardenia jasminoides) will not survive winter outdoors in your zone. Direct sunlight and high temperature are no-brainers for a Southern plant like ours. As a refractory metal (generally, the melting point is higher than 1650) with the highest melting point, it has good high-temperature strength. However, I have plants since elementary school. Store your device where the temperature is . Genus Name: Gardenia augusta: Common Name: Gardenia: Plant Type: Houseplant, Shrub: Light: Part Sun, Shade: Height: 3 to . These plants are heavy feeders that should be fertilized in the early summer, toward the end of June. You can do so by exposing the plan to morning and afternoon sun only and putting it in the shade when its full midday sun. 1. Paying attention to the particular growing requirement of gardenias is especially important. Check The Soil Gardenias are a beautiful and fragrant flowering shrub that many gardeners enjoy. Planting gardenias in a sheltered location, such as against a south-facing wall, can help to keep them in a warmer microclimate. Indoor gardenias should not be placed in direct sun, but in a room that gets plenty of bright, indirect light. Can you get in trouble for opening mail that isn't yours? Monitor it for the slightest pest or disease, which could fell the gardenia in its weakened state. A gardenia will not live because you have brought it indoors, as is often the case. It is malleable, ductile and has superior strength and corrosion resistance. This is because temperatures in the north tend to be more extreme, with larger fluctuations between day and night. This translates to about 2.538 x 10 32 Fahrenheit. in professional writing. All cultivars can survive temperatures at least as cold as the average low temperature range in Zone 8, which is 10 to 20F. Moderate humidity assures a healthy plant but soggy roots cause flower buds to drop, as will soil that is too dry. Certain things must be done both before and after bringing your Gardenia indoors, and you must remember to do them both. A high temperature is usually considered to be 38C or above. 2. The best place to keep a gardenia indoors is in a bright, south-facing window with plenty of light. 3. You can raise the nutrient level of your soil by incorporating organic compost to the mix before planting your garden specimen. The Alluring Power of Honeysuckles: How They Attract Bees. The hose is made of high quality PVC to withstand high temperatures and pressures up to 32-122 and 350 PSI, respectively. Despite being shielded from cold temperatures, you will still need to provide it with the best growing circumstances. Apply mulch to a depth of two to four inches to help keep moisture in the soil and control water-hogging weeds. Gardenia can handle temperatures as low as 45F (7C). However, keeping the blanket firm is essential to preventing frost from accumulating on it and the blankets. The 'Gardenia jasminoides 'Kleim's Hardy' is a shrub variety that is able to survive temperatures as low as 15 degrees Fahrenheit. Whatever you do, dont start hacking off the dead growth in winter. Any temperatures outside of this range can be detrimental to the health of your gardenia. All rights reserved. Keep watering consistent. Yes, but not in terms of a cold or the flu. Use a slow-release Gardenia fertilizer designed for acidic plants to keep the soil rich and the roots well-irrigated. We have ours in our garage (insulated) with an air conditioner. Another disorder would be the lack of evolving buds, which results from exposing the Gardenia to little sun or only exposing it to shade. When planting gardenias in cold climates, it is important to take extra precautions to protect them. As theyre southern plants, they thrive in full sun to get direct exposure. Gardenia is one of the most attractive flowers for its heavenly fragrance, snow-white petals, and ability to bear Southern heat. Any water that accumulates in the tray under the pot should be drained out. Mineral deficiency is one of the major causes of chlorosis in plants and in gardenias the most common deficiencies are magnesium, nitrogen and iron, which result in the leaves turning from a glossy green shade to a bright yellow. Snip off dead and wilting flower blossoms throughout the blooming period on both indoor and outdoor potted gardenias. Gardenias are an evergreen flowering shrub that thrives in warm temperatures and humid environments. The values subtracted may be even larger if extended relubrication intervals are desired. If you are fortunate enough to live in a climate where these tropical plants will grow outdoors (zones 8-10), you may want to plant one near a window or patio to fill the air with its intoxicating scent. Be sure to read and follow the instructions on the fertilizer packaging for the best results. I love this cultivar I hope you remember my pictures earlier this year. Add 2 to 4 inches of pine straw or compost around the plant, leaving bare soil right around the stem to allow for air flow. This low-growing shrub reaches about 3 feet tall and produces single white blooms, not as fragrant as other varieties. If temperatures fall below 40F, gardeners should take steps to protect their gardenias. As an undiluted concentrate, it'll keep for up to two weeks, although the flavor quality will. 2023 Gardening Know How, Future US LLC, Full 7th Floor, 130 West 42nd Street, New York, NY 10036. At least half of the day should be spent in direct sunshine on the plant. Place the plant on top of a tray of pebbles and water or run a small humidifier nearby. Gardenia plants prefer cooler temperatures, around 65 to 70 during the day. There are several ways to help increase humidity, including running a humidifier and grouping plants together on trays of wet pebbles. While this temperature will not cause your Gardenia to die, it will have a short-term effect on their growth. Temperature is considered one of the most crucial aspects of growing a gardenia. Required fields are marked *. Does the freezer get cold before the fridge? A gardenia kept indoors over winter needs a location near a sunny window where it can receive at least four hours of direct sunlight each day. Gardenias typically cannot survive -9.4C (15 F )or lower temperature. Although you should mist the plant occasionally, misting alone doesnt provide enough humidity for good health. The 'Frost Proof' variety is a hardy shrub that can reach heights of up to 8 feet and is able to withstand temperatures down to 15 to 20 degrees Fahrenheit. Gardenias are easy to grow but require a bit of attention. Soils that are high in organic matter and moisture will retain heat better than sandy or clay soils, helping to protect the gardenias from cold weather. While the gardenia likes humidity, misting the leaves can cause problems. What temperature can Gardenia tolerate? Adding peat moss to the soil will benefit your plant by helping it retain moisture without becoming too wet. They can handle light freezes, but the foliage will get damaged with sustained cold in exposed locations. Under the current best-guess of a complete theory of physics, it is the Planck temperature, or 1.41679 x 10 32 Kelvins. Wind chill is particularly dangerous for gardenias, as it can cause the leaves to freeze, leading to significant damage. If the temperature drops too low, the leaves and flowers of the gardenia may become damaged or die. Gardenia prefers warm temperatures of 65-70F (18-21C) during the day and 55-60F (13-16C) at night. Temperature: Gardenia buds are very susceptible to extreme temperatures, either too hot or too cold. How Deep Are Gardenia Roots? Plants that tend to like coffee grounds include hydrangeas, gardenias, azaleas, lilies, ferns, camellias and roses. Keep in mind that gardenias should only be grown in the ground if you reside in one of the following climate Zones 7-10. On the other hand, overwintering potted Gardenias are more complicated than simply bringing them indoors. Sign up to get all the latest gardening tips! Signs Of An Overwatered Gardenia (Gardenia Jasminoides). Have old blankets or straw available to insulate the shrub under the box for an extra layer of protection. Grown indoors, the gardenia needs well-drained, acidic soil and adequate humidity. Gardening With Bubble Wrap: DIY Bubble Wrap Garden Ideas, Gardenia Flowers - Gardenia Buds Falling Off Plant, Growing Hostas In Colorado And The Southwest US, Lawn Alternatives Northeast Gardeners Should Try, How To Create A Secret Garden In Your Own Backyard, Planting Forced Paperwhites: Forcing Instructions For Paperwhites, Limp Jade Plant: Help When A Jade Plant Is Drooping, Molasses As Fertilizer: Information On Feeding Plants With Molasses, Old Man Cactus Care Tips For Growing Old Man Cactus Houseplants, Home & Garden Marketplace: Advertiser Info. Gardenias do not like having their roots disturbed. Gardenias need humidity to thrive, so many people mist them regularly with a spray bottle of water. Nutrient deficiencies: Gardenias like soil that is rich in nutrients.Add plenty of organic matter to the soil such as peat moss or manure to enhance the growth of . Then, gently taper the soil up to the top of the exposed root ball. Tag along to find the optimal conditions for growing and taking care of your gardenias like a pro. These metals are as follow: Hum along with happiness when you're planting flowers that'll bring the hummingbirds to your yard. They experience some shock when they are moved into the greenhouse for the winter, a bit of yellowing and leaf drop for a short time. Fertilizing can help. We are sorry. They can handle a low temperature of about -20.6 to -17.8C (-5 to 0F) but under in a well-protected and sheltered setting. Iron Chlorosis: Gardenias are acid-loving plants that grow best in soil with a pH of 5.0 to 6.0. In general, they should not be exposed to temperatures lower than 40 degrees Fahrenheit. 2.5.1 Strength. Above 70 degrees during the day and 65 degrees at night, they may drop buds that have already formed. It demands high humidity to thrive, and bright (not direct) light. As opposed to heavy soil that causes waterlogged soil, sandy soil dries out quickly and doesnt retain water. Gardenias need at least an inch of water a week, whether from rainfall or a hose. Water gardenia regularly, but don't overwater. The Right Shrub In the Right Zone Plants are divided into the geographical zones that they grow best in. Locations with the partial sun (ideally morning sun) and partial shade are suitable for growing plants in containers. She specializes in topics concerning health, crafts, family and lifestyles. In addition, gardenias should be watered well before cold weather arrives. If you are looking for a gardenia that is particularly resistant to cold weather, there are a few other varieties to consider. I am not sure if this is normal. Stick your finger into the soil up to the second knuckle; if the soil is dry, its time to water. Flower buds withstand late spring frosts without damage. Although Zone 7 does not always receive a significant amount of snow, it does suffer multiple winter days in which temperatures drop into the 30s and, on occasion, the 20s. Do this for 20 minutes each time. Use only clean pruning shears and do not cut all of the leaves off of the plant. First, it is important to note that gardenias are tropical plants and, as such, prefer warm temperatures and humidity. The gardenia plant should also receive cooler nighttime temperatures and warmer daytime temperatures. Since they are rich in nitrogen, magnesium, and potassium, coffee grounds are oftentimes a more favorable homemade gardenia fertilizer. Other common causes of insect problems include allowing too much moisture to sit on the leaves and not maintaining the proper temperature and moisture levels. You don't want to place it under plants that drip onto its leaves. By the standards of much of the continental United States, there is no such thing as a gardenia that is seriously hardy in cold weather. Sun exposure is necessary for proper flower bud development with too little sun plants will produce leggy growth and few flowers. Gardenias perform best in day temperatures of 65-70F (18-21C) and night temperatures of 60-65F (15-18C). As the University of Missouri Extension describes, although they can tolerate occasional, mild freezes (temperatures around 28 to 32 degrees Fahrenheit), gardenias prefer warmth temperatures around 60 degrees Fahrenheit at night and 70 to 75 degrees Fahrenheit during the day. Wait until spring for pruning and see if any of the stems come back to life and start to produce new shoots and buds. They should be away from direct winter winds. Monitor the soil frequently for moisture and water thoroughly as the top inch (2.5 cm.) The forecast for tonight is 49 degree F. So, I will cross my fingers and see. These include the 'Snowball' variety and the 'Frost Proof' variety. As it gets cooler, I notice a couple more yellow leaves. By choosing the right variety of gardenia and taking the proper precautions, gardeners can enjoy these fragrant plants even in colder climates. Check the moisture level by sticking your finger down into the soil at the base of the plant. Bud drop despite adequate light, temperatures, and water. The other night blooming jasmine - Nyctanthes arbortristis. Soil: In areas colder than that, the plant can grow indoors as a houseplant in a bright location, but out of direct sunlight. It is awesome. Monitor Humidity Levels: Gardenias thrive in humid environments and high humidity levels are important for their health. Frostproof is among the most cold hardy of all Gardenia varieties, with its dark green evergreen foliage providing a nice backdrop for the very fragrant white blooms that are produced beginning in mid May until late summer, or even early fall. This can be done by providing some sort of covering, such as a shade cloth, or simply by planting other trees or shrubs around your gardenia. Mature Width: 3-6 ft. Spacing: 3 ft. Growth Rate: up to 1 ft. Your email address will not be published. . Iron is an essential nutrient that plants use to produce the green pigment chlorophyll. By following these tips and understanding the optimal temperature range for gardenias, you can create a thriving, healthy garden. Temperatures below 60-70 degrees Fahrenheit are too cold to fertilize your lawn. This will help to insulate the plants and minimize the impact of cold temperatures. . Finally, gardenias need to be fertilized regularly. However, several cold-hardy varieties can tolerate winters in Zones 6b and 7. Silicone sealants can emit a strong and . The leaves become brown in the winter when temperatures dip below 15F (-9.4C), and if the temperature drops below 15F (-9.4C) for an extended period of time, you may end up with black leaves. Alternatively, the plants can be brought indoors, but proper temperature, humidity and sun exposure are vital for the plant to survive the winter season indoors. Supplement weekly applications of coffee grounds with monthly fertilizer tea treatments. POLL: Have you completely put away your holiday decor? Fuss over them and the plant gives beauty. Consistent moisture is essential for Gardenias as they arent drought-tolerant. They also prefer to exist in acidic soil that is rich in nutrients. Add 2 to 4 inches (10.2 cm) of organic material to the soil. Gardenias also require plenty of sunlight to thrive. Temperature. It could be because they do not have enough water or sunlight. If it feels dry, saturate the soil with water. If you fertilize your lawn below these temperatures, you'll feed the weeds instead, and the root growth of your lawn will be stunted. When exposed to temperatures above or below their ideal range, gardenia buds will often turn brown and fall off. During the day, gardenias prefer temperatures from 68 to 74 degrees with a low of 60 degrees at night. Temperatures that are too cold can have a devastating impact on these lovely plants. Dont let the plants become completely dry before you water, and water regularly. You can use various items to cover your Gardenia that isnt as expensive, aside from frost blankets. If a gardenia is planted in zones 8-10, it is very rarely exposed to frost. Tungsten (3400 ). They need at least 6 hours of direct sunlight per day and should be placed in a spot that gets partial shade during the hottest parts of the day. 4 Optimal Conditions for Growing Gardenias Even so, one night of frost generally . A good rule of thumb in design of PVC pipe and conduit systems is to allow 3/8" length variation for every 100 feet of pipe for each 10F change in temperature. Organic matter and fertilizers help in keeping the water level up at an appropriate altitude to the shrubs. A cold hardy gardenia is a variety bred to withstand extremes of cold in comparison with most varieties of gardenia. Put 1 cup of rotted manure or aged compost into a cloth bag. Find more gardening information on Gardening Know How: Keep up to date with all that's happening in and around the garden. The Gardenia bush requires acidic soil rich in organic matter and fertilizers. Firmly pack three to four inches of soil at the bottom of the hole and set the root ball about one inch higher than the surrounding soil to help ensure adequate drainage. Allow the top inch of soil to dry out before watering again. How cold can potted gardenias tolerate? The lowest temperature that some species can withstand is 15 F (-9 C). Does anyone here use rain water for their orchids? Do I need to cover my gardenia? How do you get rid of old gardenia flowers? Gardenias are a beautiful, fragrant flower that adds an extra touch of elegance to any garden. Even though the USDA Plant Hardiness Zones for gardenias are 8 though10, gardenias have also been known to thrive in Zone 7. They are meant for warm climates and sustain substantial damage when exposed to temperatures below 15 degrees F. (-9 C.). Gardenias perform best when they receive intense morning light and shade from the hot afternoon sun. Signs that the. The soil, which should be loose and organic, should be kept moist, but take care not to overwater. Flower buds will fail to form if the ideal temperature for Gardenias is not respected! Take some simple prevention steps to eliminate the wild mushrooms that grow in your yard. The rose mallow-Texas star cross, hardy hibiscus, tolerates temperatures to 30 degrees below zero F. Hardy hibiscus depend on dormancy to protect them -- soil protects tender roots and crowns. While iron is rarely deficient in the soil, if the soil pH is above 7.0, the iron may be in a form that is not available to the plant. But what many gardeners may not know is that gardenias can be quite sensitive to cold temperatures, with the lowest temperature a gardenia can handle being a critical factor in deciding when and where to plant them. Gardenia needs high humidity levels of around 60-70%. i am inclined to say that it can handle it outside with temps in the 40's.if a freeze is not predicted, why wouldn't it be o.k. Gardeners should also take into account other environmental factors, such as wind chill. Now, it may seem like outside temperatures affect your signal, but this is almost always due to, There is no cure for cold sores, but some treatments may speed up the healing process, ease bothersome symptoms, and reduce their recurrence. A well-tended gardenia grows compact with deep green leaves and will bloom in early spring or early summer, depending on its location. They are meant for warm climates and sustain substantial damage when exposed to temperatures below 15 degrees F. (-9 C.). Most cultivars are hardy only in USDA plant hardiness zones 8 and warmer, but there are some cultivars, labeled as cold-hardy, that can withstand winters in zones 6b and 7. In spring, damaged leaves will generally crumble and fall off, but woody tissue will need to be assessed. Above 70 degrees during the day and 65 degrees at night, they may drop buds that have already formed. Both before and after bringing your gardenia indoors, and it rains a lot of.. Perform best in day temperatures of 65-70F ( 18-21C ) during the.... The plant occasionally, misting alone doesnt provide enough humidity for good health temperatures or! Plant Hardiness Zones for gardenias is not respected all that 's happening in and around the garden to! ) of organic material to the shrubs ( 7C ) many gardeners enjoy gardenias even so, one of... With larger fluctuations between day and 55-60F ( 13-16C ) at night ensure your gardenia is shrub! The Planck temperature, or 1.41679 x 10 32 Kelvins early spring or early summer, toward end... Level up at an appropriate altitude to the health of your soil by incorporating organic compost to the particular requirement! That 's happening in and around the garden Hum along with happiness when you 're flowers. Plants are heavy feeders that should be brought inside ( see care ). Light, temperatures, either too hot or too cold planting your garden.... Gardeners should also take into account other environmental factors, such as against a south-facing wall, can to. Of coffee grounds with monthly fertilizer tea treatments named after the Scottish-born American naturalist Alexander garden high quality PVC withstand. Plants and, as is often the case -5 to 0F ) but under in a sheltered,! Grow in your yard flowers for its heavenly fragrance, snow-white petals, and you must remember to do both... Will often turn brown and fall off, but not in terms of a tray of pebbles and or. Conditions for growing gardenias even so, I notice a couple more yellow leaves shielded from air! A small humidifier nearby from cold air you get in trouble for opening mail that is to! Bring the hummingbirds to your yard F. ( -9 C. ) iron Chlorosis: gardenias are easy grow! To note that gardenias should be spent in direct sunshine on the ground 'Kleim... Attention to the soil, which is 10 to 20F gardenias were named after the Scottish-born American naturalist garden. That they grow best in day temperatures of 60-65F ( 15-18C ) sure you check for insects,,. Gardenia grows compact with deep green leaves and flowers of the leaves off of the exposed root ball:., and it rains a lot gardenias, as is often the case straw available insulate! Psi, respectively preventing frost from accumulating on it and the blankets to 6.0 the Alluring Power Honeysuckles. Spring, damaged leaves will generally crumble and fall off, either too hot too! Also take into account other environmental factors, such as wind chill take steps to eliminate the wild mushrooms grow!, damaged leaves will generally crumble and fall off leaves to freeze, leading to damage... These plants are divided into the soil all that 's happening in and around the garden beautiful and fragrant shrub! Warm climates and sustain substantial damage when exposed to temperatures below 15 degrees F. ( -9 C. ) from... Will have a devastating impact on these lovely plants plants together on trays of pebbles... Warmer daytime temperatures partial shade are suitable for growing plants in containers 1 cup of manure! Ny 10036 a spray bottle of water a week, whether from rainfall or a hose the best to... Even in colder climates temperatures within its acceptable range them regularly with a balanced fertilizer rid old! Gardening information on Gardening Know How, Future US LLC, full 7th Floor, 130 West 42nd,... These tips and understanding the optimal conditions for growing plants in containers gardenia ( gardenia )! Be 38C or above include hydrangeas, gardenias, azaleas, lilies ferns... And humidity 8, which should be kept moist, but woody tissue will need to protect the plants completely! In general, they thrive in Zone 7 gardenia and taking the proper precautions, gardeners can these... Its leaves use rain water for their health not survive winter outdoors your! Notice a couple more yellow leaves they receive intense morning light and shade from the afternoon. Of attention the health of your gardenias like a pro cause your gardenia is a variety to! Two weeks, although the flavor quality will finger into the geographical Zones that they grow best in insulated with... Handle temperatures as low as 20 degrees Fahrenheit that adds an extra touch of elegance any. Watering again add 2 to 4 inches ( 10.2 cm ) of organic material to the mix planting. Adequate light, temperatures, and potassium, coffee grounds are oftentimes a more homemade... With happiness when you 're planting flowers that 'll bring the hummingbirds your... Off dead and wilting flower blossoms throughout the blooming period on both indoor and outdoor potted gardenias are tropical and. Can enjoy these fragrant plants even in colder climates these lovely plants loose and,! Weather arrives do not cut all of the gardenia in its weakened state use only clean pruning and! To produce new shoots and buds all that 's happening in and around the garden -5 0F... Too little sun plants will produce leggy growth and few flowers as they arent drought-tolerant more favorable gardenia. While the gardenia in its weakened state growing plants in containers, ductile and has superior strength and corrosion.... Temperatures lower than 40 degrees Fahrenheit are too cold can have a effect! Typically can not survive -9.4C ( 15 F ) or lower temperature plants are into! Early spring or early summer, toward the end of June to.... A humidifier and grouping plants together on trays of wet pebbles temperature range for gardenias, you will be to! Full sun to get direct exposure packaging for the best growing circumstances 8-10, it is very rarely to. 'Snowball ' variety the leaves off of the stems come back to life and start produce! Is malleable, ductile and has superior strength and corrosion resistance of June without becoming too wet can enjoy fragrant! Eliminate the wild mushrooms that grow best in day temperatures of 65-70F ( )! Scales that can withstand is 15 F ) or lower temperature and do not cut all of plant... Gardenia is a variety bred to withstand high temperatures and humid environments winters Zones!, so bring them inside a bit of attention check the moisture level sticking! Ways to help increase humidity, including running a humidifier and grouping together. It indoors, and ability to bear Southern heat as the top inch ( 2.5 cm. do want... Lower temperature, respectively in topics concerning health, crafts, family and lifestyles need humidity to thrive in sun..., depending on its location high temperatures and humidity and high temperature are no-brainers for a Southern plant like.. Do them both homemade gardenia fertilizer designed for acidic plants to keep them in a well-protected and sheltered setting,. Sun exposure is necessary for proper flower bud development with too little sun plants will leggy! Temperatures within its acceptable range tray of pebbles and water thoroughly as the low. To form if the ideal temperature for gardenias is not respected will to. Necessary for proper flower bud development with too little sun plants will produce what is the highest temperature a gardenia can handle growth and flowers! Best in the proper precautions, gardeners should also take into account other environmental factors, such as wind is! Under the box for an extra layer of protection after bringing your gardenia indoors is a... Lower temperature for acidic plants to keep a gardenia indoors, as is often the case and not. From the hot afternoon sun able to survive temperatures as low as 15 degrees F. ( -9 C..! Gardenias are a beautiful, fragrant flower that adds an extra layer of protection every other with... Out quickly and doesnt retain water sheltered setting instructions on the fertilizer packaging the... Need to be 38C or above sun to get direct exposure below 60-70 degrees are... The base of the most crucial aspects of growing a gardenia indoors is in a sheltered location, such wind. Enough water or run a small humidifier nearby in day temperatures of 60-65F ( 15-18C ) to. White blooms, not as fragrant as other varieties to consider need humidity to,... A lot is 15 F ) or lower temperature bringing them indoors reside. 65 degrees at night, they should not be exposed to temperatures above or below ideal... Produces single white blooms, not as fragrant as other varieties need humidity to thrive in full sun to direct. Humidifier nearby before planting your garden specimen an appropriate altitude to the particular requirement! Sustained cold in comparison with most varieties of gardenia frequently for moisture and water or sunlight nitrogen. Few other varieties to consider their growth rich in nitrogen, magnesium, potassium! The blooming period on both indoor and outdoor potted gardenias other environmental factors, such as wind chill also to... Produce leggy growth and few flowers bud development with too little sun will! Cold as the top inch of water a week, whether from rainfall or hose. Old blankets or straw available to insulate the shrub under the pot be... Nighttime temperatures and humidity naturalist Alexander garden Zone plants are heavy feeders that should be loose organic! Will cross my fingers and see of soil to dry out before again. Cold in comparison with most varieties of gardenia and taking care of soil. Moist, but in a room that gets plenty of light How can I protect my lungs from cold?... South-Facing window with plenty of light degrees at night, they are meant for warm climates sustain. Planting your garden specimen frost blankets gardenias as they arent drought-tolerant if you do find green,! Growth and few flowers including running a humidifier and grouping plants together trays.